Buso della rana, Natural cave system in Monte di Malo, Italy.
Buso della Rana is an extensive cave network in Monte di Malo featuring winding passages and water-filled tunnels that extend beneath the surface. The system consists of multiple levels connected by underground waterways and geological formations that developed over millions of years.
The site gained scientific recognition in the 1890s when French researchers documented its geological importance. Since then, exploration and study of the cave system has continued to reveal insights into the region's underground landscape.
The cave system serves as a center for environmental learning, drawing people interested in understanding the natural world beneath the surface. Visitors experience how underground ecosystems function and discover why such places matter for the region's ecological balance.
Advance booking is required, and visitors should wear waterproof boots and warm clothing due to the cool underground environment. Professional guides lead groups through the passages, pointing out geological features and explaining the cave's structure as you move through.
The cave contains shark teeth fossils from around 35 million years ago, evidence of an ancient tropical sea that once covered this area. These remains reveal how the region was transformed as it rose above the ocean millions of years later.
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